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NEET UG PHYSICS MCQ: UNITS & MEASUREMENTS

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Application +4 | -1

If the time period (T) of vibration of a liquid drop depends on surface tension (S), radius (r) of the drop and density (

\rho

) of the liquid, then the expression of T is

View answer and explanation

Correct option: A

T = k\sqrt {\rho {r^3}/S}

Option A (

T = k\sqrt {\rho {r^3}/S}

) is correct because dimensional analysis confirms that the dimensions of this expression match the dimensions of time.

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